Brazilian federal police have raided the offices of a consortium responsible for construction at a site that will host 11 sports during August's Olympics Games in Rio de Janeiro, as part of a sweeping anti-corruption investigation.

Federal police said in a statement said they carried out search warrants at the headquarters of the consortium responsible for Olympic projects at the Deodoro site in northern Rio, made up of privately owned Brazilian construction firms OAS SA and Queiroz Galvao. About 128 million reais ($A50.22 million) in funding…